<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title>alert的使用</title>
	</head>
	<body>
		<p>window.alert()的使用</p>
		<script type="text/javascript">
		/* 页面加载的时候就会执行这条语句 */
			window.alert(5 + 6)
		</script>
	</body>
</html>